Furrower overshoe



Nov. 27, 1928. 1,693,226

J. V. DYRR FURROWER OVERSHOE Filed March 13 1924 Jaco K175- Patented Nov. 27, 1928.

UNITED STATES 1,693,226 PATENT OFFICE.

JACOB V. DYRR, 0F BELL, CALIFORNIA, ASSIGNOR T0 DYRR MFG. C0,, 0F BELL, CALI- FORNIA, A CORPORATION OF CALIFORNIA.

FURROWER OVER-SHOE.

Application filed March 13, 1924. Serial No. 698,888.

This invention relates to means for protecting the points of trench forming plows and furrowers, and an object is to provide an appliance of a simple, cheap and durable construction that can be fitted over the nose of a plow shovel or furrower to protect their points from wear. As is well known a plow shovel or furrower can be used indefinitely if the point which is subject to a major portion of the wear can be properly protected; and an object of the iIlWEIltlOIl is to provide a simple and effective means for prolonging the period in which they can be used by protecting their points from wear.

An object of the invention is to provide an attachment that can be easily and effectively secured in place. -This is accomplished by providing a bolt hole through the attachment that will register with the bolt hole through the shovel or furrower so that a single bolt will secure both of them to a draw bar; and also providing the shovel or furrower with a curved nose astride of which the attachment is snugly seated so that side thrust thereon cannot'easily displace it from the nose.

Another object of the invention is to provide an attachment for a furrower that will break up and loosen the ground slightly in advance of the furrower and also loosen the soil to a depth below the furrower to act as a subsoiler. That is, the attachment or overshoe is arranged slightly in advance of the furrower so that it will first break out a deep and narrow channel and loosen the soil to the sides thereof, so that the loosened soil is easily displaced and thrown out of the trench by the wings of the furrower, and the point of the over-shoe extends below the point of the furrower and loosens the soil below such furrower.

An object of the invention is to provide an over-shoe for a furrower that can be easily attached and detached; and which in use effective to perform its function of protecting the furrower point from excessive wear.

A feature of the inventlon is shown in the construction of the over-shoe, which in ad- Another object is to provide a furrower over-shoe that can be rigidly held in place on a furrower by a single bolt.

Other objects, advantages and features of nvention may appear from the accompanylng drawing, the subjoined detail description and the appended claims.

I The accompanying drawing illustrates the invention.

Figure 1 is a perspective View of a furrower over-shoe constructed in accordance with this invention; and showing the appliance attached to a furrower and draw bar.

Fig. 2 is a sectional front view on line 00 Fig. 1, showing the over-shoe mounted on a furrower and secured to a draw bar.

Fig. 3 is an enlarged fragmental section on line M, Fig. 2.

Fig. 4 is a cross section on line w, Figs. 2, 3.

Fig. 5 is a cross section on line at, Figs. 2, 3, 4.

Fig. 6 is a perspective view of the overshoe detached from the-furrower.

The appliance or over-shoe comprises a narrow elongated body 1 that has its under surface concaved and formed to snugly fit over the nose 2 and point 3 of a furrower 4; and is held seated thereon partly by its curved fitting to the furrower and also by a bolt 5 that secures both the over-shoe 1 and furrower 4 to a draw bar 6. That is, the fur rower 4 is provided with a nose that in cross section has a front convex curvature; and the shoe in cross section has its rearward surface curved to fit snugly over the curvature of the nose so that the snug fitting of the shoe to the nose aids greatly in holding the parts together when in use. That is the pressure of soil against the over-shoe will aid to hold it seated on the nose; and also the fitting of the shoe to the nose will aid in resistingthe-side thrust of the soil on the shoe.

The shoe 1 adjacent its upper end is provided with a countersunk bolt hole 7 that registers with the bolt hole 8 in the furrower 4. so that when the shoe and furrower are fitted together they can be secured to the draw bar 6 by a single bolt -5; and the parts are arranged and secured together so that the point 9 of the shoe is slightly below and in advance of the point 3 of the furrower.

The over-shoe 1 is tapered from its upper end toward its lower end to form a, thicker removing the bolt 5 that holds the furrower 4 to the draw bar 6 and then inserting said bolt 5 through the hole 7 and theusual hole in the furroWer and draw bar. The over'shoe asconstructed and arranged functions first to protect the point of the furrower, and second to brea k out a narrow channel slightly in advance of and deeper than the fur-rower and to simultaneously loosen the soil to the sides of the narrow channel so that wings of the furrower can easily displace the loosened soil and form a channel of relative uniform shape and depth.

I claim.

1. The appliance for fur-rowers having a point and a'nose as set forth comprising an over shoe adapted to be fitted over the nose 7 and point of the furrower, said shoe having a cutting point arranged slightly below and in advance of the furrower point; and a thickened'end portion 'to said shoe adjacent the cutting point thereof engaging'the furroWer point and adapted to be drawn out into a point when the cutting edge of said shoe is Worn away.

2. Ihe appliance set forth in combination With a furroiver having a point a draw bar and a rounded nose; an over-shoe adapted to be fitted over the nose of said furrou'er said shoe having arelatively thick pointed end adapted to extendhelow and the upper end of Which engages the point of said furrovver, said shoe and furrower having registering bolt holes adjacent their upper ends; and a single Vholt for rigidly securing said shoe and furrower to the draw bar.

In testimony whereof, I have hereunto set my hand at Los Angeles, California this 21st day of February, 1924. r

JACOB V. DYRR. 

